Merge branch 'iterators' into 'master'

Iterators

See merge request !65

CHANGELOG

@@ -18,6 +18,7 @@ Version X (?/?/?)
 - Fix mesh copying by implementing copy constructors and clone methods
 - Fix bug in edge split of tetrahedral meshes
 - Ensure that halfface iterators start with a boundary halffaces when cells are deleted
+- Added new iterators (VertexIHalfEdgeIter, VertexEdgeIter, VertexHalfFaceIter, EdgeHalfFaceIter, EdgeFaceIter, EdgeCellIter)
 
 
 

src/OpenVolumeMesh/Mesh/TetrahedralMeshTopologyKernel.cc

@@ -561,6 +561,23 @@ std::vector<VertexHandle> TetrahedralMeshTopologyKernel::get_halfface_vertices(H
     return vertices;
 }
 
+VertexHandle TetrahedralMeshTopologyKernel::halfface_opposite_vertex(HalfFaceHandle hfh) const
+{
+    if (is_boundary(hfh)) {
+        return InvalidVertexHandle;
+    }
+
+    const std::vector<VertexHandle> base = get_halfface_vertices(hfh);
+    for (CellVertexIter it = cv_iter(incident_cell(hfh)); it.valid(); ++it) {
+        const VertexHandle vh = *it;
+        if (vh != base[0] && vh != base[1] && vh != base[2]) {
+            return vh;
+        }
+    }
+
+    return InvalidVertexHandle;
+}
+
 
 //========================================================================================
 

src/OpenVolumeMesh/Mesh/TetrahedralMeshTopologyKernel.hh

@@ -90,6 +90,8 @@ public:
     std::vector<VertexHandle> get_halfface_vertices(HalfFaceHandle hfh, VertexHandle vh) const;
     std::vector<VertexHandle> get_halfface_vertices(HalfFaceHandle hfh, HalfEdgeHandle heh) const;
 
+    VertexHandle halfface_opposite_vertex(HalfFaceHandle hfh) const;
+
 
     VertexHandle collapse_edge(HalfEdgeHandle _heh);
 protected: